Automatic shut-off ball-cock



(No Model.)

T.W.,RYAN. 7 AUTOMATIC SHUT-OPP BALL COCK.

No. 603.030. Patented Apr. 26, 1898.

A TTOHNEY A 3 horizontal position.

5 grooves y.

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THOMAS WV. RYAN, OF CONCORD, MASSACHUSETTS.

AUTOMATIC SHUT-OFF BALL-COCK.

SPECIFICATION forming part of Letters Patent No. 603,030, dated April26, 1898. Application filed October 17,1894. Serial No. 526,186. (Nomodel.)

to which said invention appertains to maketo and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification, in which Figure 1 is a vertical longitudinal section ofmy improved ball-cock represented as open,

the float-spindle and tank being shown as broken off; and Fig. 2, atransverse section taken on line 2 2 in Fig. 1.

Like letters and numerals of reference indicate corresponding parts inboth figures of the drawings.

My invention relates especially to an automatic shut-off ball-cock foruse in Water-tanks, the object being particularly to provide a devicewhich may be readily repaired and cleaned without removing the screwfrom the lip of the balhcock, as is customary in ordinary forms, andwhich can be repacked Without shutting off the water in the main pipe.

The nature and'operation of the improveinent will be readily understoodby all conversant with such matters from the following explanation:

In the drawings,A represents the tank, upon which the body B of the cockis mounted in The outer end of the body is exteriorly screw threaded atz, and the supply-pipe H is connected therewith by means of an ordinaryscrew-coupling 15. The discharge f of the cock opens from the bottom 40of the body in the usual manner, and adjacent the inner edge of saiddischarge two valve-seats m r are formed. The interior of the bodybetween the seat r and the supplypipe 11 is ribbed longitudinally at 00,forming A valve n is fitted to slide in said body and be driven againstthe seat 0' by the water-pressure from the supply. Said valve has aspindle i projecting through the seat m. The face of said valve is equalto or greater than the capacity of the grooves 11, so that thewater-pressure on the supply side will act to seat said valve whenreleased, as hereinafter specified, and yet said grooves act to preventchattering. A large valve D is fitted to slide in the inner end of thebody from the dischargepipe and is provided with a packing or leatherWasher p, held on its end by a screw q and in position to engage thevalve-seat m. The spindle t of the shut-off valve '0 butts against saidscrew. The valve D is provided with a lip h, projecting through anopening c in the bottom of the body. A casting 71: is pivoted at g andhas its upper end forked to astride said lip, whereby the valve D isoperated as the casting rocks. The spindle j on the ball E is secured tosaid casting. The outer end of the body has an annular shoulder 11 andis exteriorly screw-threaded at d, and a screwcap 0 is turned onto saidend, covering the end of the sliding valve D.

The bottom of the body B is slotted from the opening '1; through the endof that portion of the body which forms the casing for the valve D. Thisslot is covered by the screw-cap C and provides a passage for the lip hof the Valve D when said valve is to be removed.

In the use of my improvement as the water rises in the tank, carryingwith it the float or ball E, the valve D is driven thereby from left toright, as viewed in Fig. 1, until it engages the seat m, shutting ofithe supply of Water from the main H. As the water lowers in the tank thevalve D moves in the opposite direction and the water from the mainpasses through the grooves y, around the shut-off valve Q), into thedischarge. The pressure of the water from the main on the valve o causesit to follow the valve D. When it is necessary to repair the valve D orrepack it, the cap 0 is removed, and said valve can be drawn out byhand, the water-pressure in the main driving the valve '0 against itsseat,shuttin g the supply 06 automatically.

The amount of pressure on the valve 1; from the main is regulated by thesize of the ribs or grooves in the valve-chamber, so that said automaticshut-off valve can be easily driven against said pressure by the largevalve, and when said large valve is removed there is still sufficientpressure to close the valve '0 automatically. This shut-off valve isoperated by a ground joint preferably, although it may be packed. I showthe back part of the valve as bell-shaped at 10,01 chambered, althoughit may be flat, if preferred. It will furthermore be seen that by theuse of my improvement all necessity for using a stop-cock is obviated.It will also be understood that my improved automatic shut-off can beapplied to any style of faucets, hydrants, or other Water distributionwithout interfering with the Waterway or reducing the pressure.

The casting 7c is so arranged that it does not interfere with theremoval of the valve ,D when the cap 0 is off.

The ribs :1; form sufficient bearing for the valve 1;, and the spacesare preferably of size to equal the face of the valve.

The air-chamber prevents all chattering or hammering.

My improved valve has a decided advantage over most valves of thisclass, as the parts are so arrangedithat the float-actuated valve can bewithdrawn by simply removing the cap 0 Without detaching the casting bywhich the float is pivoted, and the valve Q) will at once closeautomatically when this is done, thus enabling the same to be packed orotherwise repaired Without shutting off the Water from the supply. Theaction is positive and the construction very simple and cheap. All theparts being horizontal, it is applicable for use in various positions towhich the valves constructed in the ordinary manner are not adapted.

Having thus explained myinvention, What I claim is- An automaticfloat-valve comprisingacasing provided interiorly with two valve-seats,and provided also at one end with exterior screw-threads and with a slotextending in- Ward from the end, a valve on the inlet side,

a valve on the discharge side having a projection entering the slot inthe casing, and a screw-cap adapted to be placed on thescrewthreaded endto retain in position the valve on the discharge side, substantially asdescribed.

THOMAS NV. RYAN.

WVitnesses:

O. M. SHAW, K. DURFEE.

